Electric toothbrush



FIG. 1 is a perspective view of an electric toothbrush from above, showing my design;

FIG. 2 is a front view of the appliance of FIG. 1;

FIG. 3 is a right-side view of the appliance of FIG. 2;

FIG. 4 is a left-side view of the appliance of FIG. 2;

FIG. 5 is a rear view of the appliance of FIG. 2;

FIG. 6 is a top plan view of the appliance of FIG. 2, and,

FIG. 7 is a bottom plan view of the appliance of FIG. 2. 

The ornamental design for an electric toothbrush, as shown and described. 